After your Mailcow Email service is provisioned, you must configure DNS records for your domain. These records ensure email delivery, authentication, and client auto-configuration all work correctly.
Finding Your DNS Records
- Open the customer portal at
console.digitalfyre.com
- Navigate to Services and open your Mailcow Email service
- Click the DNS Records tab
The portal displays all required records with the exact values for your server. The server hostname varies by location and assignment (e.g., us-nyc-1.mailcraft.io).
Required Records
The DNS Records tab shows the following records. Add each one to your domain’s DNS provider.
MX Record
Directs incoming email to your Mailcow server.
| Type | Host | Priority | Value |
|---|
| MX | yourdomain.com | 10 | (your server).mailcraft.io |
SPF Record
Authorizes your Mailcow server to send email on behalf of your domain. Helps prevent spoofing and improves deliverability.
| Type | Host | Value |
|---|
| TXT | yourdomain.com | v=spf1 mx include:spf.mailcraft.io ~all |
DKIM Record
Adds a cryptographic signature to outgoing email, proving it was sent from an authorized server.
| Type | Host | Value |
|---|
| TXT | dkim._domainkey.yourdomain.com | (DKIM public key shown in portal) |
DMARC Record
Tells receiving servers what to do with email that fails SPF or DKIM checks.
| Type | Host | Value |
|---|
| TXT | _dmarc.yourdomain.com | v=DMARC1; p=quarantine; rua=mailto:postmaster@yourdomain.com |
Autodiscover and Autoconfig CNAMEs
Enable automatic email client configuration for Outlook, Thunderbird, and mobile devices.
| Type | Host | Value |
|---|
| CNAME | autodiscover.yourdomain.com | (your server).mailcraft.io |
| CNAME | autoconfig.yourdomain.com | (your server).mailcraft.io |
Verification
After adding all records, allow time for DNS propagation (typically a few minutes to a few hours). You can verify your records using DigitalFyre’s DNS tools or any online DNS lookup service.
Missing or incorrect DNS records will cause email delivery failures. The MX record is essential for receiving email. SPF, DKIM, and DMARC are essential for deliverability — without them, your outgoing email is likely to be flagged as spam or rejected by receiving servers.
